In order to improve a method for operating a compressor/expander machine in a circuit for a working medium, wherein the compressor/expander machine has a machine housing with a screw rotor housing, in which at least one screw rotor arranged between a low-pressure side and a high-pressure side is arranged for compressing/expanding the working medium and is coupled to a motor/generator unit, in such a way that damage is avoided in the region of the screw rotors, it is proposed that an operation control unit is provided for operating the compressor/expander machine and, in the event of termination of operation of the compressor/expander machine, operates the motor/generator unit in accordance with a predetermined speed curve until a lowest speed range of the at least one screw rotor is reached, which prevents damage in the region of the screw rotor.
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 28/08 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par une variation de la vitesse de rotation
A separator device separates a liquid phase of a second medium, in particular a lubricating medium, from a mixture having a gaseous phase of a first medium, in particular a refrigerant. The separator device includes: a housing which forms a cyclone chamber arranged along a central axis and has an upper end region and a lower end region on opposite sides with respect to the central axis; an immersion tube; and flow guiding means for forming a helical flow in the cyclone chamber around the central axis. An inlet into the cyclone chamber for the mixture of the first and second medium is provided in the upper end region and a first outlet for the first medium and a second outlet for the separated second medium is provided in the lower end region. The immersion tube projects from the lower end region in the central axis into the cyclone chamber.
F25B 43/02 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur pour la séparation des lubrifiants du frigorigène
B01D 45/16 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge en utilisant la force centrifuge produite par le mouvement hélicoïdal du courant gazeux
B04C 3/00 - Appareils dans lesquels la direction axiale du tourbillon ne change pas
B04C 3/06 - Structures des entrées ou sorties de la chambre où se produit le tourbillon
In a refrigerant compressor comprising an overall housing with a motor housing portion, in which there is arranged a motor chamber having, provided therein, an electric motor comprising a stator and a rotor, and with a compressor housing portion which has a compressor unit, in order to be able to mount the stator as easily as possible it is proposed that the stator is mounted in the motor housing portion by means of supporting elements inserted into the motor housing portion, which supporting elements on the one hand abut against a stator-receiving surface of the motor housing portion and on the other hand surround the stator inserted into the supporting elements on its outer side and support it spring-elastically relative to the stator-receiving surface.
F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F04B 25/04 - Pompes multiétagées spécialement adaptées aux fluides compressibles ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal
F04B 27/10 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
A scroll compressor is provided, the scroll compressor comprises two scroll bodies, one of the two scroll bodies is a stationary scroll body with a scroll wrap and the other scroll body of the two scroll bodies is a moveable scroll body with a scroll wrap, the scroll wraps of the two scroll bodies engage each other forming at least one compression chamber, and the stationary scroll body comprises a base plate and the stationary scroll body has two opposing sides with respect to the base plate and on a first side of the two opposing sides the scroll wrap of the stationary scroll body is arranged and on a second side of the two opposing sides at least one pressure pocket is formed and at least one vent passage is provided through the base plate from the first side to the second side, the vent passage opens at the second side into the at least one pressure pocket and the vent passage has an opening at the first side which is arranged such that the vent passage is fluidly connected to the at least one compression chamber during a compression cycle of the at least one compression chamber at least during a time span before the at least one compression chamber is fluidly connected to a discharge chamber of the scroll compressor and at least during a time span of the period when the at least one compression chamber is fluidly connected to the discharge chamber.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
ttbtb1tb2tb2) defining a z-direction that is orthogonal to said x-direction, and at least one refrigerant distribution layer (30,130,150) located above at least one bundle (20,120, 140) of heat exchanger tubes (21,121,141), said at least one refrigerant distribution layer (30,130,150) comprising perforated pipes (31,131,151) which have holes (133a.1,133a.2, 133a.3,133a.4,133a.5,133a.6,133a.7) for emitting refrigerant towards the bundle (20,120,140) of heat exchanger tubes (21, 121,141) above which said refrigerant distribution layer (30, 130,150) is located, wherein at least some of said perforated pipes (31,131,151) have a longitudinal axis defining a horizontal y-direction that is orthogonal to the x-direction defined by said heat exchanger tubes (21,121,141) and wherein perforations of the perforated pipes (31,131,151) having a longitudinal y-direction that is orthogonal to the x-direction defined by said heat exchanger tubes are formed by holes (133a.1,133a.2,133a.3,133a.4,25 133a.5,133a.6,133a.7) that are arranged in sets (133a,133b, 133c,133d), wherein each set (133a,133b,133c,133d) of holes is arranged on a circumference lying on a vertical xz-plane that passes through a heat exchanger tube (21,121, 141) of the bundle (20,120,140) and located above a respective heat exchanger30 tube (121a.1,121a.2,121b.1,121b.2,141a.1,141a.2,141b.1,141b.2) of said bundle (20,120,140) of heat exchanger tubes (21,121, 141).
F28F 25/06 - Buses ou canalisations de pulvérisation
F28D 3/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique s'écoule sous forme de pellicule continue ou ruisselle librement sur les canalisations avec canalisations tubulaires
F28D 5/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, utilisant l'effet réfrigérant de l'évaporation naturelle ou forcée dans lesquels la source de potentiel calorifique soumise à évaporation s'écoule sous forme de pellicule continue ou ruisselle librement sur les canalisations
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Compressors, in particular refrigerant compressors; mixing
machines; oil separators; current generators; expansion
machines; mechanical installations for operating steam
turbines or steam engines with organic working fluids
(organic rankine cycle installations); refrigerant
condensers; condensing units (parts of machines, included in
this class) consisting of refrigerant compressors,
condensers and liquid collectors; power generation
installations using waste heat; parts for the aforesaid
goods. Chilling machines; cooling installations; refrigerating
machines; refrigerated transport assemblies;
multi-compressor refrigeration installations comprising a
number of compressors; air-conditioning apparatus;
air-conditioning installations; evaporators; refrigerant
liquid collectors; separators for purifying refrigerants;
heat exchangers, other than parts of machines; heat pumps;
heat recovery installations; parts of the aforesaid goods. Installation, repair, maintenance and servicing in relation
to the following goods: compactors, liquifiers, chilling
machines, cooling installations, refrigerating machines,
refrigerated transport assemblies, multi-compressor
refrigeration systems, airconditioning apparatus, air
conditioning installations, refrigerant condensers,
vaporizers, heat exchangers, heat pumps, refrigerant liquid
collectors, expansion machines, current generators, parts
and accessories for the aforementioned goods; consultancy
and information in relation to the aforesaid services,
included in this class.
Machine for expanding or compressing compressible media, comprising a machine casing (10), at least one screw rotor (36,38) which is arranged in a screw rotor bore (32,34) in the machine casing and which extends between a low-pressure side (62) and a high-pressure side (64) of the screw rotor bore and which cooperates with the compressible medium, wherein by rotating about a screw rotor axis the at least one screw rotor (36,38) conveys the substantially gaseous medium either from the low-pressure side (62) to the high pressure side (64) by compressing it, or from the high-pressure side to the low pressure side by expanding it, wherein a motor generator unit (132) is coupled or couplable to the at least one screw rotor, wherein the at least one screw rotor is axially supported by a lubricant support film (210) provided between an end wall surface (126,128) of said screw rotor bore (32,34) and a high-pressure end face (122,124) of said at least one screw rotor (36,38) in order to prevent contact.
F01C 1/16 - "Machines" ou machines motrices à piston rotatif d'un type à engrènement extérieur, c.-à-d. avec engrènement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne à piston rotatif denté à dents hélicoïdales, p. ex. en forme de chevron ou du type à vis
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 29/02 - LubrificationSéparation du lubrifiant
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
In order to provide a control unit which can cooperate with a great variety of operating units and/or status acquisition units, it is proposed that the control unit comprises a base module which has at least one processor and at least one memory store for the required program code for operating the processor and terminals for operating units carrying out basic functions and/or status acquisition units and that the processor and the program code stored in the memory store are configured such that therewith additional functions of an additional module connectable to the base module are also executable.
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Compressors, in particular refrigerant compressors; mixing machines; oil separators; current generators; expansion machines; mechanical installations for operating steam turbines or steam engines with organic working fluids (organic rankine cycle installations); refrigerant condensers; condensing units (parts of machines, included in this class) consisting of refrigerant compressors, condensers and liquid collectors; power generation installations using waste heat; parts for the aforesaid goods. Chilling machines; cooling installations; refrigerating machines; refrigerated transport assemblies; multi-compressor refrigeration installations comprising a number of compressors; air-conditioning apparatus; air-conditioning installations; evaporators; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers, other than parts of machines; heat pumps; heat recovery installations; parts of the aforesaid goods. Installation, repair, maintenance and servicing in relation to the following goods: compactors, liquifiers, chilling machines, cooling installations, refrigerating machines, refrigerated transport assemblies, multi-compressor refrigeration systems, airconditioning apparatus, air conditioning installations, refrigerant condensers, vaporizers, heat exchangers, heat pumps, refrigerant liquid collectors, expansion machines, current generators, parts and accessories for the aforementioned goods; consultancy and information in relation to the aforesaid services, included in this class.
13.
METHOD FOR POSITIONING A CLOSURE ELEMENT OF A VALVE OR EJECTOR, AND VALVE OR EJECTOR
Wurm GmbH & Co. KG Elektronische Systeme (Allemagne)
Armaturenwerk Altenburg GmbH (Allemagne)
Inventeur(s)
Dreisbach, Heiko
Mikesch, Lucas
Abrégé
In a method for positioning a closure element of a valve or ejector, said closure element being movable by means of a drive between a first end position and a second end position, the closure element is moved into one of the first end position and the second end position and, after the closure element has been moved into the one end position, a compensation cycle is performed during which the closure element is controlled to perform a first compensation movement towards the other end position and to perform a second compensation movement towards the one end position.
A scroll machine with an injection for a medium has a machine housing with a longitudinal axis. A first scroll unit with scroll channel is formed by a scroll rib. A second scroll unit has a first side and a second side opposite the first side. A scroll channel formed by a second scroll rib is provided on the first side, and a high-pressure chamber is arranged on the second side of the second scroll unit and connected with the scroll channel via a passage. These are arranged in the machine housing along the longitudinal axis. The first scroll unit and the second scroll unit engage with each other to form pressure chambers. The first scroll unit can be moved relative to the second scroll unit along an orbital path. An intermediate base is provided along the longitudinal axis between the second scroll unit and the high-pressure chamber.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
A scroll machine, in particular a scroll compressor, has a first scroll unit with a base and a scroll rib protruding from the base with a scroll rib tip, a second scroll unit with a base and a scroll rib protruding from the base with a scroll rib tip. The first scroll unit can be moved along an orbital path relative to the second scroll unit and the first scroll unit and the second scroll unit engage with each other to form pressure chambers, and the scroll rib of a scroll rib tip having a face seal abuts sealingly to the base of the respective other scroll unit. The base of the first scroll unit and/or the base of the second scroll unit include(s) a pocket with an insert plate arranged in the pocket. Also contemplated is a refrigeration system.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 29/02 - LubrificationSéparation du lubrifiant
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
A scroll machine for a medium has a machine housing having a longitudinal axis and an inlet and an outlet for the medium. Provided in the machine housing along the longitudinal axis is: a drive unit having a drive shaft mounted on the machine housing by a first bearing unit and a second bearing unit, a first spiral unit having a spiral channel formed by a first spiral rib and has an inner end region and an outer end region, and a second spiral unit having a spiral channel formed by a second spiral rib and has an inner end region and an outer end region. The first spiral unit and the second spiral unit engage one another to form pressure chambers, wherein the first spiral unit can be moved by means of the drive shaft through the drive unit along an orbital path relative to the second spiral unit.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F25B 1/04 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Compressors, in particular refrigerant compressors; mixing machines; oil separators; current generators; expansion machines; mechanical installations for operating steam turbines or steam engines with organic working fluids (organic rankine cycle installations); refrigerant condensers; condensing units (parts of machines, included in this class) consisting of refrigerant compressors, condensers and liquid collectors; installations for power generation using waste heat; parts for the aforesaid goods. Chilling machines; cooling installations; refrigerating machines; refrigerated transport assemblies; multi-compressor refrigeration installations comprising a number of compressors; air-conditioning apparatus; air-conditioning installations; evaporators; refrigerant liquid collectors being apparatus or appliances for refrigerating, cooling, air-conditioning or heating; separators for purifying refrigerants; heat exchangers, other than parts of machines; heat pumps; heat recovery installations; parts of the aforesaid goods. Installation, repair, maintenance and servicing in relation to the following goods: compactors, liquifiers, chilling machines, cooling installations, refrigerating machines, refrigerated transport assemblies, multi-compressor refrigeration systems, airconditioning apparatus, air conditioning installations, refrigerant condensers, vaporizers, heat exchangers, heat pumps, refrigerant liquid collectors, expansion machines, current generators, parts and accessories for the aforementioned goods; consultancy and information in relation to the aforesaid services, included in this class.
In order to improve a refrigerant compressor of the type mentioned in the introduction such that it is ensured that, even in the event of a tilt along a longitudinal direction of the refrigerant compressor unit relative to a horizontal course of the longitudinal direction, lubricant can reliably be drawn off by suction out of the lubricant sump, in order to prevent excessive accumulation of lubricant in the lubricant sump, it is proposed that there should be provided on the bottom side of the motor compartment a receiving point that takes a form such that the receiving point supplies lubricant from the lubricant sump to the suction-removal unit.
In order to improve a method for selecting a frequency converter for a refrigerant compressor unit comprising a refrigerant compressor and an electric drive motor in such a way that the frequency converter is optimised for the application in question, it is proposed that a working state suitable for the operation of the refrigerant compressor unit is selected in an application field of an application diagram of the refrigerant compressor, that an operating frequency is selected for this selected working state, and that, on the basis of drive data, a working state operating current value corresponding to the selected working state and the selected operating frequency is ascertained for the operation of the refrigerant compressor unit.
H02P 27/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs
In order to increase the efficiency, in respect of the quantity of refrigerant to be compressed, of a reciprocating piston compressor for refrigerant, comprising a compressor housing having at least one compressor stage that has at least one cylinder unit, wherein a piston is movably arranged in the cylinder unit, a cylinder drive that is arranged in the compressor housing, for the at least one piston, a valve plate that closes off a cylinder chamber and is provided with at least one suction valve which, for its part, has a suction opening, arranged in the valve plate and closable by a suction vane, and has at least one outlet valve with an outlet opening, wherein the at least one suction valve and the at least one outlet valve are associated with the respective cylinder chamber, and a cylinder head that is arranged on an opposite side of the valve plate to the cylinder chamber, it is proposed that the valve plate should have, on its side facing the cylinder chamber, a recess, which is arranged inside an external contour of an abutment face of the suction vane that is associated with the suction opening and which extends from the suction opening and is open toward this abutment face.
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Compressors, in particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods. Chilling machines; Cooling installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air-conditioning apparatus; Air-conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts of the aforesaid goods. Installation, repair, Maintenance and servicing in relation to the following goods: Compactors, Liquifiers, Chilling machines, Cooling installations, Refrigerating machines, Refrigerated transport assemblies, multi-compressor refrigeration systems, Airconditioning apparatus, Air conditioning installations, Refrigerant condensers, vaporizers, Heat exchangers, Heat pumps, Refrigerant liquid collectors, Expansion machines, Current generators, parts and accessories for the aforementioned goods; Consultancy and information in relation to the aforesaid services, included in this class.
A scroll compressor is provided, the scroll compressor comprises two scroll bodies, one of the two scroll bodies is a stationary scroll body with a scroll wrap and the other scroll body of the two scroll bodies is a moveable scroll body with a scroll wrap, the scroll wraps of the two scroll bodies engage each other forming at least one compression chamber, and the stationary scroll body comprises a base plate and the stationary scroll body has two opposing sides with respect to the base plate and on a first side of the two opposing sides the scroll wrap of the stationary scroll body is arranged and on a second side of the two opposing sides at least one pressure pocket is formed and at least one vent passage is provided through the base plate from the first side to the second side, the vent passage opens at the second side into the at least one pressure pocket and the vent passage has an opening at the first side which is arranged such that the vent passage is fluidly connected to the at least one compression chamber during a compression cycle of the at least one compression chamber at least during a time span before the at least one compression chamber is fluidly connected to a discharge chamber of the scroll compressor and at least during a time span of the period when the at least one compression chamber is fluidly connected to the discharge chamber.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 28/26 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge utilisant des canaux de dérivation
23.
METHOD FOR OPERATING STATUS DETERMINATION OF A REFRIGERANT COMPRESSOR/EXPANDER
In order to improve a method for operating status determination of a refrigerant compressor/expander comprising a compressor unit and a drive unit such that information on the operating status of a refrigerant compressor/expander which is as reliable as possible can be obtained, it is proposed that, for at least one bearing of the refrigerant compressor/expander, a load value resulting from an operation of said refrigerant compressor/expander and a speed value are determined and in that, on the basis of the speed value and the load value and also at least one operating parameter, there is determined for the at least one bearing an operating prediction value for a future maintenance-free operation of the refrigerant compressor/expander.
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Compressors, in particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods. Chilling machines; Cooling installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air-conditioning apparatus; Air-conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts of the aforesaid goods. Installation, repair, Maintenance and servicing in relation to the following goods: Compactors, Liquifiers, Chilling machines, Cooling installations, Refrigerating machines, Refrigerated transport assemblies, multi-compressor refrigeration systems, Airconditioning apparatus, Air conditioning installations, Refrigerant condensers, vaporizers, Heat exchangers, Heat pumps, Refrigerant liquid collectors, Expansion machines, Current generators, parts and accessories for the aforementioned goods; Consultancy and information in relation to the aforesaid services, included in this class.
25.
SEPARATOR DEVICE, COMPRESSOR WITH A SEPARATOR DEVICE, AND REFRIGERATION SYSTEM WITH A SEPARATOR DEVICE
The present invention relates to a separator device (1), in particular a lubricating-medium separator device, for the separation of a liquid phase of a second medium L, in particular a lubricating medium, from a mixture with a gaseous phase of a first medium (G), in particular a refrigerant, comprising a housing (10) which configures a cyclone chamber (20), is arranged along a centre axis (Z), and has an upper end region (11) and a lower end region (12) on opposite sides in relation to the centre axis (Z), a dip pipe (40), and flow guide means (28) for forming a helical flow in the cyclone chamber (20) about the centre axis (Z), wherein an inlet (21) into the cyclone chamber (20) for the mixture of the first and second medium is provided in the upper end region (11), and a first outlet (22) for the first medium (G) and a second outlet (23) for the separated second medium L are provided in the lower end region (12), wherein the dip pipe (40) protrudes from the lower end region (12) in the centre axis (Z) into the cyclone chamber (20) and is connected fluidically to the first outlet (22) and forms a first recess (50) between the housing (10) and the dip pipe (40), and wherein the separated second medium (L) can flow through the second outlet (23) out of the first recess (50) in the lower end region (22). Furthermore, the present invention relates to a compressor, in particular a refrigerant compressor, and to a refrigeration system.
B01D 45/12 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge en utilisant la force centrifuge
B04C 5/13 - Structure du guide pour la phase légère, p. ex. pour faire sortir la matière en spirale ou en la dispersant formé comme un capteur de tourbillon, et s'étendant à l'intérieur de la chambre du tourbillonÉvacuation du viseur de tourbillon autrement que par le haut du cycloneDispositifs de commande de l'évacuation de la phase légère
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
26.
Device for measuring a liquid level of a medium at a high temperature, container, refrigerating machine or refrigeration cycle having such a device
The present invention relates to a device (1) for measuring a liquid level of a medium at a high temperature in a container (5), having a measuring unit (10) with a measurement chamber (15) and a measuring instrument (20) for determining the liquid level in said measurement chamber, and having a connecting feature (30) for connecting said measuring unit (10) with said container (5) at a distance and for transferring the medium from said container (5) into said measurement chamber (15), wherein said connecting feature (30) has an attachment adapter (35) for fastening to said container (5) and a connection adapter (45) for connecting to said measuring unit (10), wherein said attachment adapter (35) and said connection adapter (45) are arranged at a distance by at least two connecting lines (40) along an axis (X). Furthermore, the present invention relates to a refrigerating machine having such a device.
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
G01F 23/30 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme par des flotteurs
A scroll compressor is provided, the scroll compressor comprises two scroll bodies each having a scroll rib and the scroll ribs engage each other to form at least one compression chamber, and the scroll compressor further comprises a drive shaft for driving a moveable scroll body of the two scroll bodies, wherein the moveable scroll body comprises a base plate which has two opposing sides, wherein on a first side of the two opposing sides the scroll rib is arranged and on a second side of the two opposing sides a hub is arranged, the hub comprising a receiving portion for a drive section of the drive shaft, and wherein the moveable scroll body comprises at least one passage from an interior of the receiving portion to a hub environment located around the hub at the second side of the two opposing sides.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 29/02 - LubrificationSéparation du lubrifiant
A scroll compressor includes two scroll bodies each having a scroll rib. The scroll ribs engage each other to form at least one compression chamber. The scroll compressor further comprises a drive shaft for driving a moveable scroll body of the two scroll bodies. The moveable scroll body includes a base plate which has two opposing sides. On a first side of the two opposing sides, the scroll rib is arranged, and on a second side of the two opposing sides a hub is arranged. The hub has a receiving portion for a drive section of the drive shaft. The moveable scroll body has at least one passage from an interior of the receiving portion to a hub environment located around the hub at the second side of the two opposing sides.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
A refrigerant compressor group for a refrigeration system, comprising at least two piston compressors that operate in parallel between a common low-pressure connector and a common high-pressure connector, wherein, for the purpose of adjusting it to different requirements, it is provided, in a refrigerant compressor group, for a variable overall mass flow throughput in the refrigerant compressor group to be adjustable in that, in the case of at least one of the piston compressors, its mass flow throughput is adjustable by speed selection with the aid of a frequency converter for the electric motor, and in that, in the case of at least one of the piston compressors, its mass flow throughput is adjustable by cylinder selection, and in that an operating condition controller for the refrigerant compressor group is provided which, on the basis of a performance request signal of the refrigeration system that is transmitted to the operating condition controller, controls the overall mass flow throughput by open or closed-loop control by predetermining the cylinder selection and the speed selection.
The present invention relates to a heat exchanger (2) having a jacket (10) through which a first medium (A) can flow and which has at least one first inlet (11) and at least one first outlet (12), at least one tube (30) through which a second medium (B) can flow, the tube (30) being guided through the jacket (10) and having at least one second inlet (31) and at least one second outlet (32), wherein a deflection segment (50) or a plurality of deflection segments (50) are arranged in a row in a longitudinal axis (X) in the jacket (10), wherein the deflection segment (50) is formed from at least two partial sections (51, 52), which are arranged so as to overlap and cross, in areas, transverse to the longitudinal axis (X).
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
F28F 9/22 - Dispositions pour diriger les sources de potentiel calorifique dans des compartiments successifs, p. ex. aménagement des plaques de guidage
31.
COMPRESSOR UNIT AND METHOD FOR OPERATING A COMPRESSOR UNIT
A compressor unit including a screw compressor having a compressor housing that has a screw rotor chamber arranged in the compressor housing, two screw rotors that are arranged in the screw rotor chamber and are mounted on the compressor housing to be rotatable about a respective screw rotor axis, and at least one control slider, which is arranged in a slider channel of the compressor housing, is adjacent to both screw rotors and is movable in a direction of displacement parallel to the screw rotor axes and takes a form such that it affects the final volume and/or the initial volume, wherein there is provided on the screw compressor a compressor operational control unit that takes a form such that it performs a compressor operating function that assists at least one operation of the compressor unit.
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 28/12 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des tiroirs
F04C 29/02 - LubrificationSéparation du lubrifiant
Refrigerant compressor for refrigeration systems, comprising an electric motor, at least two cylinder banks and a mechanical performance control unit for activating and deactivating at least one of the cylinder banks in order to activate or deactivate its refrigerant output, wherein, for the purpose of operation in partial performance conditions, the refrigerant compressor is operable in at least two different operating modes, of which each provides an activation or deactivation of the cylinder banks that is different from the other operating modes, wherein associated with the refrigerant compressor is a frequency converter for controlling the speed of the electric motor, wherein associated with the refrigerant compressor is an operating condition controller that, in accordance with a performance request signal supplied to it for operation of the refrigerant compressor in the partial performance condition corresponding to this performance request signal, operates the refrigerant compressor in an operating mode that is selected from at least two different operating modes and at a speed adapted to the selected operating mode, for the purpose of achieving this partial performance condition.
F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
F04B 27/00 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres
F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti
The present invention relates to a scroll compressor or expander, comprising a first spiral unit (120) having at least one spiral rib (130) forming at least one spiral channel (140) with an inner and an outer end region (142, 144), and a second spiral unit (220) having at least one spiral rib (230) forming at least one spiral channel (240) with an inner and an outer end region (142, 144), wherein: the at least one spiral rib (130) of the first spiral unit (120) and the at least one spiral rib (230) of the second spiral unit (220) interlock to form pressure chambers (40); the first spiral unit (120) is rotatable about a first centre axis (X1), and the second spiral unit (220) is rotatable about a second centre axis (X2); the first centre axis (X1) and the second centre axis (X2) are spaced apart in a crank radius (δ); a transmission unit (60) rotationally couples the first spiral unit (120) and the second spiral unit (220); and the second centre axis (X2) can be guided about the first centre axis (X1) in an orbit (O).
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
The invention relates to a compressor for refrigerant having a compressor housing, said compressor housing being provided with a suction inlet and a pressure outlet, said compressor comprising a compression unit, arranged in a compression housing section of said compressor housing and an electric motor arranged in a motor housing section of said compressor housing, said electric motor comprising a stator arranged within a stator receiving sleeve of said motor housing section and a rotor surrounded by said stator and arranged on a drive shaft of said electric motor for rotation about an axis of rotation together with said drive shaft, said stator comprising a stator core having a stack of laminations and extending parallel to said axis of rotation from a first front side to a second front side, said stator having windings extending through said stator core and forming end windings arranged in front of said front surfaces, and a channel for guiding at least a portion of said refrigerant entering through said suction inlet along an outer side of said stator before entering said compression unit.
H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
H02K 9/14 - Dispositions de refroidissement ou de ventilation dans lesquels l'agent de refroidissement gazeux circule entre l'enveloppe de la machine et une chemise extérieure
36.
METHOD FOR OPERATING STATUS DETERMINATION OF A COOLANT COMPRESSOR/EXPANDER
In order to improve a method for operating status determination of a coolant compressor/expander comprising a compressor unit and a drive unit such that information on the operating status of a coolant compressor/expander which is as reliable as possible can be obtained, according to the invention, for at least one bearing of the coolant compressor/expander, a load value resulting from an operation of said coolant compressor/expander and a speed value are determined and, on the basis of the speed value and the load value and at least one operating parameter, an operating prediction value for a future maintenance-free operation of the coolant compressor/expander is determined for the at least one bearing.
F04B 49/00 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
A refrigerant compressor for refrigeration plants having a compressor unit driven by a drive unit. At least one of the compressor and drive units has a control unit which is controllable by delivery rate control system to control the refrigerant compressor at different delivery rates. An external delivery rate setpoint value is communicated to the delivery rate control system to prevent critical operating states. The delivery rate control system is configured to acquire, via a sensor, a compressor unit reference temperature. The delivery rate control system is configured to ascertain an operating state value group to acquire an operating state of the refrigerant compressor, and specify a delivery rate for operation of the refrigerant compressor outside of the critical operating states, if the value of the ascertained operating state value group based upon the compressor reference temperature permits a critical operating state of the refrigerant compressor.
In order to improve a refrigerant compressor, comprising an overall housing with a motor housing portion and a compressor housing portion, which has a cylinder housing with a cylinder head, wherein the cylinder head has a cylinder head lower part arranged on the cylinder housing and a cylinder head upper part which closes off the cylinder head and has at least one outlet chamber integrated in the cylinder head upper part, in such a way that it is possible to provide optimal protection for the cylinder head, it is proposed that the cylinder head is covered by means of a hood which engages over the cylinder head upper part on an upper side facing away from the cylinder head lower part with a hood cover and over the cylinder head in the region of its peripheral side with a hood skirt surrounding the cylinder head.
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
40.
Refrigerant compressor with stator elastic support
In a refrigerant compressor comprising an overall housing with a motor housing portion, in which there is arranged a motor chamber having, provided therein, an electric motor comprising a stator and a rotor, and with a compressor housing portion which has a compressor unit, in order to be able to mount the stator as easily as possible it is proposed that the stator is mounted in the motor housing portion by means of supporting elements inserted into the motor housing portion, which supporting elements on the one hand abut against a stator-receiving surface of the motor housing portion and on the other hand surround the stator inserted into the supporting elements on its outer side and support it spring-elastically relative to the stator-receiving surface.
F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F04B 25/04 - Pompes multiétagées spécialement adaptées aux fluides compressibles ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal
F04B 27/10 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
41.
Screw expander with variable volume controlled by the pressure ratio, and plant for recovering electrical energy from heat with a screw expander
In order to adapt to different operating conditions a screw expander, comprising an expander housing with a screw rotor chamber arranged therein, two screw rotors arranged in the screw rotor chamber and mounted rotatably in the expander housing, which screw rotors intermesh with their screw contours in order to receive working medium supplied by means of a high-pressure chamber arranged in the expander housing and in order to discharge said medium in the region of a low-pressure chamber arranged in the expander housing, and a generator driven by the screw rotors, it is proposed that the screw expander has at least one control slide, which is arranged in a slide channel of the expander housing and is adjacent to both screw rotors with slide wall surfaces, which control slide is movable in a displacement direction parallel to the screw rotor axes and is thereby configured to influence the final volume and/or the initial volume, and that a slide drive is provided for moving the control slide into different slide positions.
F01C 1/16 - "Machines" ou machines motrices à piston rotatif d'un type à engrènement extérieur, c.-à-d. avec engrènement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne à piston rotatif denté à dents hélicoïdales, p. ex. en forme de chevron ou du type à vis
F01C 20/12 - Commande, surveillance ou dispositions de sécurité pour les "machines" ou machines motrices caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des tiroirs
42.
Machine for depressurizing or compressing gaseous media
In order to improve a machine for depressurizing or compressing substantially gaseous media, comprising a machine casing and at least one screw rotor, which is arranged in a screw rotor bore in the machine casing, extends between a low-pressure side and a high-pressure side of the screw rotor bore, cooperates with the substantially gaseous medium and is mounted on both sides in the machine casing by means of a respective bearing set, and a motor/generator unit that is coupled or couplable to the at least one screw rotor, it is proposed that the at least one screw rotor should be provided with at least one axial support bearing that axially supports the at least one screw rotor such that a high-pressure end face of the at least one screw rotor is guided, without making contact, to an end wall, which faces this end face, of the machine casing that receives the at least one screw rotor.
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 29/02 - LubrificationSéparation du lubrifiant
43.
EXPANSION INSTALLATION AND INSTALLATION FOR OBTAINING ELECTRICAL ENERGY FROM HEAT
In order to improve an expansion installation for obtaining electrical energy from heat by means of a thermodynamic circulation procedure, comprising an expansion device, which is operated by an expanding working medium of the thermodynamic circulation procedure, and a generator driven by the expansion device, it is proposed that the expansion installation should be provided with a rotational speed sensor, which is coupled to a shaft of the expansion installation that rotates proportionally to a rotor of the generator, and which takes the form of an electrical sensor generator that generates an electrical sensor signal.
G01P 3/48 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire en mesurant la fréquence du courant ou de la tension engendrés
A suction fitting coupled to a scroll compressor that has an outer housing with an inside diameter and a suction port defined in a wall of the outer housing. A suction duct is disposed inside the outer housing at a spaced distance from the wall of the outer housing. The suction duct defines an entrance port aligned with the suction port. The suction fitting includes a first member being generally cylindrical, and a second member being generally cylindrical. The second member is disposed inside the first member with a portion of the second member extending into the outer housing through the suction port, spanning the spaced distance to the suction duct, and coupling with the entrance port of the suction duct. Neither the first member nor the second member includes a suction screen for filtering out solid contaminants in a flow of refrigerant.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F01C 21/10 - Organes externes coopérant avec des pistons rotatifsCarcasses d'enveloppes
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
The invention relates to a coolant compressor (12) for refrigeration systems, comprising an electric motor (60), at least two cylinder banks (42) and a mechanical power control unit (70) for activating and deactivating at least one of the cylinder banks (42), in order to activate or deactivate their coolant output, wherein, for operation in part-load states, the coolant compressor (12) can be operated in at least two different operating modes (B), each of which provides a different activation or deactivation of the cylinder banks (12) from the other operating modes, wherein the coolant compressor (12) is assigned a frequency converter (132) for controlling the rotational speed of the electric motor (60), wherein the coolant compressor (12) is assigned an operating state controller (130), which operates the coolant compressor (12), according to a power request signal associated with said operating state controller for the operation of the coolant compressor (12) in the part-load state corresponding with said power request signal (LA), in an operating mode selected from at least two different operating modes (B) and at a rotational speed adapted to the selected operating mode in order to achieve this part-load state.
F04B 49/20 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la vitesse d'entraînement
F04B 27/04 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail
F04B 27/053 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail avec un élément actionnant aux extrémités intérieures des cylindres
A device is provided comprising an expansion machine for generating mechanical energy by expanding vapor of a working medium; a generator connected to a shaft of the expansion machine and used for generating electric energy from mechanical energy of the expansion machine; wherein the expansion machine and the generator form a structural unit with an exhaust vapor chamber between the expansion machine and the generator, and wherein, when the expansion machine is in operation, working medium expanded into the exhaust vapor chamber contacts the generator; and means for feeding, in particular injecting, a liquid working medium into the exhaust vapor chamber. Also provided is an ORC device comprising the device and a method for operating the device.
F01K 25/00 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs
F01D 15/10 - Adaptations pour la commande des générateurs électriques ou combinaisons avec ceux-ci
F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther
F01D 17/00 - Régulation ou commande par variation de flux
F25B 11/02 - Machines, installations ou systèmes à compression utilisant des turbines, p. ex. des turbines à gaz comme détendeurs
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
In order to improve a refrigerant compressor, including a compressor unit having a compressor housing and at least one compressor element that is arranged in the compressor housing, for compressing refrigerant, and further including a drive unit having a drive housing and an electric motor that is arranged in the drive housing and connector terminals that are arranged on the drive housing, for the electric motor, and further including an electronic functional unit, such that the connection between the refrigerant compressor and the electronic functional unit is achievable as simply as possible, it is proposed that the connector terminals should be provided in a housing that is arranged on the drive housing, and that an electronic functional unit which performs at least one compressor function should be provided in the housing.
F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes
H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
52.
Heat exchanger, refrigeration or heating system with such a heat exchanger
The present invention relates to a heat exchanger (2) having a jacket (10) through which a first medium (A) can flow and which has at least one first inlet (11) and at least one first outlet (12), at least one tube (30) through which a second medium (B) can flow, the tube (30) being guided through the jacket (10) and having at least one second inlet (31) and at least one second outlet (32), wherein a deflection segment (50) or a plurality of deflection segments (50) are arranged in a row in a longitudinal axis (X) in the jacket (10), wherein the deflection segment (50) is formed from at least two partial sections (51, 52), which are arranged so as to overlap and cross, in areas, transverse to the longitudinal axis (X).
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
F28F 9/22 - Dispositions pour diriger les sources de potentiel calorifique dans des compartiments successifs, p. ex. aménagement des plaques de guidage
A compressor/expander machine is pressure-proof with an electrical connecting unit arranged on the housing thereof comprising at least one electrical lead-through that leads into an inner space for an electrical connection with an electrical unit arranged in the housing. The electrical lead-through comprises a mounting body that is mounted on the housing as a separate element and electrical contact elements seated therein. The mounting body comprises a first mounting body sealing surface which is remote from the at least one inner space and surrounds the electrical contact elements in closed manner and which runs transverse to a compressive force that acts on the lead-through due to the medium under pressure in the at least one inner space and which cooperates in sealing manner with a first housing sealing surface of the housing that faces the at least one inner space and this first mounting body sealing surface.
2 as the refrigerant and in which there is guided a total mass flow of the refrigerant; a high-pressure-side heat exchanger arranged in the refrigerant circuit and cooling refrigerant compressed to a high pressure; at least one cooling stage which expands the principal mass flow from the intermediate-pressure collector to a low pressure in at least one cooling expansion member and in so doing makes refrigeration capacity available at a low-pressure-side heat exchanger; and a refrigerant compressor unit which compresses the principal mass flow from a low pressure to a high pressure, wherein the refrigerant compressor unit has a first compressor stage for compressing, to a medium pressure, the refrigerant of the principal mass flow supplied at low pressure, and a second compressor stage for compressing, to a high pressure, the refrigerant of the principal mass flow that has been compressed to a medium pressure.
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée
A method of manufacturing a two-piece counterweight for a scroll compressor is provided. The method includes molding an outer plate, and molding a base having a first opening configured to receive a scroll compressor drive shaft having a longitudinal axis. The method further includes configuring the base for assembly and attachment to the drive shaft. The method also includes attaching the outer plate to the base such that the outer plate is axially offset from the base. In a particular embodiment of this method, the base and outer plate are molded from powdered metal. In certain embodiments, the base and outer plate include one or more openings aligned to permit attachment by inserting a mechanical fastener through the aligned openings. In alternate embodiments, the base and outer plate are attached via brazing or welding.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F16F 15/28 - ContrepoidsLeur fixation ou leur montage
F01C 21/00 - Parties constitutives, détails ou accessoires non couverts dans les groupes
The invention relates to a machine for expanding or compressing substantially gaseous media, comprising: a machine housing (10); at least one screw rotor (36, 38), which is arranged in the machine housing in a screw rotor bore (52, 54), extends between a low-pressure side (62) and a high-pressure side (64) of the screw rotor bore, interacts with the substantially gaseous medium and is mounted in the machine housing by means of a bearing set (92, 94, 96, 98) on both sides; and a motor/generator unit (132), which is coupled or can be coupled to the at least one screw rotor. The machine is improved according to the invention in that the at least one screw rotor is provided with at least one axial support bearing (212, 214), which axially supports the at least one screw rotor such that a high-pressure-side end face (122, 124) of the at least one screw rotor is guided in a contactless manner to an end wall (126, 128), facing said end face, of the machine housing accommodating the at least one screw rotor.
F02C 3/055 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de produits de combustion comme fluide de travail ayant une turbine entraînant un compresseur le compresseur étant du type à déplacement positif
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
58.
EXPANSION SYSTEM AND SYSTEM FOR PRODUCING ELECTRICAL ENERGY FROM HEAT
According to the invention, to improve an expansion system (30) for producing electrical energy from heat, by means of a thermodynamic cycle, comprising an expansion device (32), operated by an expanding work medium of the thermodynamic cycle, and a generator (34), which is driven by the expansion device, the expansion system has a speed sensor (120), which is coupled to a shaft (98) of the expansion system, said shaft rotating proportionally to a rotor of the generator, and which is formed as an electrical sensor generator (122), which generates an electrical sensor signal.
In order to improve a method for selecting a frequency converter for a refrigerant compressor unit comprising a refrigerant compressor and an electric drive motor in such a way that the frequency converter is optimised for the application in question, it is proposed that a working state suitable for the operation of the refrigerant compressor unit is selected in an application field of an application diagram of the refrigerant compressor, that an operating frequency is selected for this selected working state, and that, on the basis of drive data, a working state operating current value corresponding to the selected working state and the selected operating frequency is ascertained for the operation of the refrigerant compressor unit.
H02P 27/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs
In order to improve safety in a refrigerant compressor system comprising a refrigerant compressor and an electric drive motor for driving the refrigerant compressor, and, arranged in a protected manner in an interior of a control housing, a control electronics system, comprising electric components or electronic power components, for controlling the electronic drive motor, it is proposed that, during operation of the refrigerant compressor system with combustible refrigerant, the control housing is provided with a refrigerant drain, which does not impair at least one protection criterion of the control housing, for discharging refrigerant which enters the interior due to a refrigerant leakage, said refrigerant drain causing the refrigerant entering into the interior due to the refrigerant leakage to pass out of the interior into the surroundings of the refrigerant compressor system.
To be as lightweight and compact, for example for automotive technology, a scroll compressor further includes an axial guide that supports the movable compressor body to prevent movements in the direction parallel to a centre axis of the stationary compressor body and, in the event of movements, guides it in the direction transverse to the centre axis. A coupling prevents the movable compressor body from rotating freely. The axial guide supports a compressor body base, which carries the scroll vane, of the second compressor body against an axial support face, in that the axial support face abuts a sliding body such that it is slidable transversely to the centre axis. The sliding body is slidable transversely to the centre axis, on a carrier element that is arranged in the compressor housing.
F04C 18/00 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/02 - LubrificationSéparation du lubrifiant
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F01C 17/06 - Dispositions pour l'entraînement des organes coopérants, p. ex. pour piston rotatif et son carter utilisant des manivelles, des joints universels, ou des éléments similaires
64.
Cold generator and refrigerating plant having a cold generator
A cold generator incorporates a heat exchanger unit integrating a heat-emitting heat exchanger and a heat-absorbing heat exchanger. The heat exchanger unit has a flow path layer stack built up in a stacked construction. In order to form the heat-emitting heat exchanger in the flow path layer stack, at least one heat-emitting refrigerant flow path and at least one heat-absorbing second heat transport flow path are provided. A second heat transport medium guided in a second heat transport circuit is arranged to flow through the second heat transport flow path. At least one heat-absorbing refrigerant flow path and at least one heat-emitting first heat transport flow path are provided in order to form the heat-absorbing heat exchanger in the flow path layer stack with a first heat transport medium guided in a first heat transport circuit that is arranged to flow through the first heat transport flow path.
A screw compressor comprises two screw rotors arranged in a screw rotor chamber, and mounted on the compressor housing to be rotatable about respective screw rotor axes, and mesh with one another. At least one control slide is arranged in a slide channel of the compressor housing, adjacently to both screw rotors by means of slide compression wall surfaces, is movable in a displacement direction parallel to the screw rotor axes, is rigidly connected to a piston rod that leads to a cylinder assembly for moving the at least one control slide, and is guided relative to the compressor housing by means of a guide insert that movably receives the piston rod in the displacement direction. The piston rod is guided transversely to the displacement direction in the guide insert in elastically resilient fashion by means of a guide element.
F04C 15/00 - Parties constitutives, détails ou accessoires des "machines", des pompes ou installations de pompage non couverts par les groupes
F16J 7/00 - Tiges de piston, c.-à-d. tiges liées rigidement au piston
F04C 28/12 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des tiroirs
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
A refrigerant compressor for a refrigeration system comprises a common housing, a compressor unit arranged in the common housing, a mechanical compressor drive unit for the compressor unit, arranged in a drive chamber, a lubricant bath forming in the drive chamber, an intake duct that extends in a manner separated from the drive chamber and through which the compressor unit draws in by suction refrigerant that is to be compressed. The intake duct and the drive chamber are connected by a gas equaliser duct, which allows a permanent equalisation of gas, and which has on one side an opening on the drive chamber side and on the other an opening on the intake side, and of which the duct length between the openings corresponds to at least twice an equivalent duct diameter, in particular a smallest equivalent duct diameter, of the gas equaliser duct.
A heat exchanger comprises a shell having an elongated shape and a cylindrical geometry. A first fluid, fed through one or more first inlet pipes, flows inside the shell and a second fluid, fed through at least one second inlet pipe, flows inside the shell in order to perform heat exchange with the first fluid. The heat exchanger also comprises a fluid distributor assembly placed at the first inlet pipes. The fluid distributor assembly is provided with a first perforated plate, in turn provided with first through holes, and with at least one second perforated plate, in turn provided with second through holes. The second perforated plate is disposed parallel and downstream of the first perforated plate with respect to the flow direction of the first fluid flowing into the first through holes and the second through holes. Between the first perforated plate and the second perforated plate a hermetic seal device is disposed. The first perforated plate and the second perforated plate are spaced from each other, in such a way that the first perforated plate and the second perforated plate, together with the hermetic seal device, surround an equalization chamber of predefined depth, measured along the flow direction of the first fluid flowing into the first through holes and the second through holes. Each equalization chamber is closed at the peripheral edges of the first perforated plate and of the second perforated plate.
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
F28F 13/06 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique
The invention relates to a refrigerant circuit (10), comprising at least one refrigerant compressor (12) which compresses cold medium supplied to a suction connection to high pressure, so that a compressor mass flow of the refrigerant compressed to high pressure exits at a pressure connection, at least one high pressure-side, heat-emitting heat exchanger (22) with an inlet, to which the refrigerant circuit feeds the compressor mass flow, and with an outlet, from which a cooled total mass flow of refrigerant exits, at least one expansion unit (32), at least one cooling stage (62) having at least one heat-receiving heat exchanger, wherein the refrigerant circuit supplies a main mass flow, which is included in the expansion pressure mass flow expanded by the expansion unit, to the heat exchanger, and a working condition adaptation unit (230) associated with the refrigerant circuit.
The invention relates to a refrigerant circuit (10) comprising: at least one refrigerant compressor (12) which compresses refrigerant fed at a suction connection to high pressure such that a compressor mass flow of the refrigerant compressed to high pressure exits at a pressure connection; at least one heat-emitting heat exchanger (22) on the high-pressure side, having an inlet to which the refrigerant circuit feeds the compressor mass flow and having an outlet from which a cooled total mass flow of refrigerant exits; at least one expansion unit (32); and at least one cooling stage (62) having at least one heat-absorbing heat exchanger to which the refrigerant circuit feeds a main mass flow comprising an expansion pressure mass flow expanded by the expansion unit. The invention also relates to an emergency operation unit (230) associated with the refrigerant circuit.
The invention relates to a compressor comprising a compressor housing (12), a scroll compressor unit (22) which is arranged in the compressor housing (12) and has a first stationarily arranged compressor body (24) and a second compressor body (26) that is movably arranged relative to the stationarily arranged compressor body (24), an eccentric drive (242) for the scroll compressor unit (22), said eccentric drive having a driver (246) which is driven by a drive motor (222) and circulates about the central axis (44) of a drive shaft (228) on the orbital path (48), and an orbital path balancing mass (252) which counteracts an imbalance due to the compressor body (26) moving on the orbital path (48). The aim of the invention is to improve such a compressor such that the long-term stability of the guidance of the driver (246) in the driver receptacle can be ensured even at high rotational speeds. This is achieved in that the orbital balancing mass (252) is coupled to the eccentric drive (242) in such a way that said balancing mass moves on the orbital path (48) in a manner corresponding to the movement of the driver (246), but is decoupled with respect to the transmission of tilting moments to the driver, and that driver and orbital balancing mass can be effective in a state coupling the centrifugal force and in a state decoupling the centrifugal force.
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
71.
Expansion unit for installation in a refrigerant circuit
The invention relates to an expansion unit for installation in a refrigerant circuit, including an expansion system having an subcooling unit for subcooling a mass flow of a refrigerant that is supplied to the expansion unit, having an expansion/compression unit including an expander stage and a compressor stage, having a branching point that splits off a subcooling mass flow from a total mass flow supplied to the expansion unit and that is connected to a supply conduit that guides the subcooling mass flow to an inlet of the subcooling unit, having an expansion member that expands the subcooling mass flow to a subcooling pressure, having a connection conduit that supplies the subcooling mass flow exiting from the subcooling unit to the compression stage, which for its part compresses the subcooling mass flow to a return high pressure, and having an electrically operated controller that detects an ambient temperature and/or a temperature of the mass flow of refrigerant that is supplied to the expansion unit and/or the expander stage, and in accordance with this temperature adjusts an inlet pressure of the expansion unit or the expansion/compression unit by controlling the subcooling mass flow using the expansion member that is electrically controlled by the controller.
A thermally insulating sleeve for a compressor discharge pipe is provided. The insulating sleeve includes a non-metallic first half-sleeve having a first curved body portion and a first extended portion. The first curved body portion is configured to fit at least partially around a portion of the compressor discharge pipe. A non-metallic second half-sleeve has a second curved body portion configured to attach to the first curved body portion such that the first and second curved body portions completely encircle the portion of the compressor discharge pipe. The second half-sleeve includes a second extended portion configured to attach to the first extended portion. Each of the first and second extended portions include respective first and second cavities which, together, encase a temperature sensor in contact with, or in spaced relation to, the compressor discharge pipe.
F16B 2/08 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif externes c.-à-d. agissant par contraction utilisant des frettes ou des bandes
F16B 2/06 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif externes c.-à-d. agissant par contraction
F16B 2/10 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif externes c.-à-d. agissant par contraction utilisant des mâchoires sur pivot
F16M 13/02 - Autres supports ou appuis pour positionner les appareils ou les objetsMoyens pour maintenir en position les appareils ou objets tenus à la main pour être portés par un autre objet ou lui être fixé, p. ex. à un arbre, une grille, un châssis de fenêtre, une bicyclette
G01K 1/143 - SupportsDispositifs de fixationDispositions pour le montage de thermomètres en des endroits particuliers pour la mesure de la température de surfaces
F16B 2/22 - Clips, c.-à-d. dispositifs de fixation à serrage effectué uniquement par la résistance à la déformation inhérente au matériau dont est fait le dispositif en matériau élastique, p. ex. un matériau caoutchouteux
F16L 55/07 - Aménagement ou montage de dispositifs, p. ex. soupapes, pour ventiler ou aérer ou purger
F16L 3/10 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection fractionnés, c.-à-d. à deux éléments en prise avec le tuyau, le câble ou le conduit de protection
F16L 3/13 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection comportant un élément entourant pratiquement le tuyau, le câble ou le conduit de protection l'élément venant s'engager autour du tuyau, du câble ou du conduit de protection par action élastique
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Generators; generating plant; compressors, in particular
refrigerant compressors; condensers [machines]; oil
separators; mufflers (parts of machines); valves for
machines; valves for engines; power operated valves; valves
operated by changes in pressure; clack valves [parts of
machines]; machines for power generation; expansion machines
[steam engines]; power generators and systems consisting
thereof based on the organic rankine cycle technology;
pumps; parts of the aforesaid goods. Measuring apparatus; sensors and detectors; measuring,
detecting and monitoring instruments, indicators and
controllers; controllers [regulators]; frequency inverters;
electric control valves; solenoid valves; electronic
diagnostic and motor protection devices, apparatus, modules
and instruments for generators, compressors, machines for
power generation, expansion machines and organic rankine
cycle systems; communication apparatus; computer software;
electronic publications [downloadable]; electronic
publications recorded on computer media; electronic
databases. Refrigerant condensers; evaporators; liquid collectors for
refrigerants; separators for the purification of
refrigerants; heat exchangers; valves for heat recovery
units; heat recovery units; waste heat utilization units;
parts of the aforesaid goods. Advertising; drafting and publication of publicity texts;
marketing; market research; public relations services;
business consultancy and advisory services; mediation of
trade business for third parties; retail and wholesale
services relating to generators, compressors, condensers,
liquid collectors for refrigerants, expansion machines,
machines for power generation, organic rankine cycle systems
and parts and accessories of the aforesaid goods;
sponsorship [promotion and marketing services]; compilation
and systemization of information into computer databases;
collection, processing and output of data in computer
databases; updating and maintenance of data in computer
databases; computerized management of databases
[administrative services]; computerized data management. Installation, repair, maintenance and servicing of
generators, compressors, condensers, liquid collectors for
refrigerants, expansion machines, machines for power
generation, organic rankine cycle systems and parts and
accessories of the aforesaid goods; consultancy and
information in relation to the aforesaid services, as far as
included in this class. Provision of training and education; arranging and
conducting of training events; conducting of courses,
seminars and workshops; arranging and conducting of
conferences, congresses and symposiums; publishing services;
providing electronic publications. Scientific and technological services; engineering services;
IT programming services; information technology [IT]
engineering; information technology [IT] consultancy
services; technical testing and certification [quality
control]; engineering design and consultancy; technical
testing services; provision of surveys [technical];
technical supervision and inspection; services for
monitoring industrial processes; monitoring of computer
systems by remote access; product development; product
design; product testing; software development, programming
and implementation; design, maintenance and updating of
computer software; consultancy and information in relation
to the aforesaid services, as far as included in this class.
A refrigeration system, in particular a transport refrigeration system, comprising a refrigeration circuit, in particular one that operates using CO2 as the refrigerant, in which a total mass flow of the refrigerant is conveyed; a heat exchanger arranged in the refrigerant circuit and cooling, on the high-pressure side, refrigerant compressed to high pressure; at least one cooling stage which expands the principal mass flow from the intermediate pressure manifold to a low pressure in at least one cooling expansion member, and in so doing makes refrigeration power available at a low-pressure-side heat exchanger; and a refrigerant compressor unit that compresses the principal mass flow from a low pressure to a high pressure, wherein the refrigerant compressor unit has a first compressor stage for compressing, to an intermediate pressure, the refrigerant of the principal mass flow supplied at low pressure, and a second compressor stage for compressing, to a high pressure, the refrigerant of the principal mass flow that has been compressed to an intermediate pressure.
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée
F25B 1/02 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur alternatif
A refrigeration system with at least three compressors connected in a circuit. Each compressor has a housing with an oil sump. The oil sump is adapted to contain oil that defines an oil level. A supply line supplies refrigerant and entrained oil to each of the at least three compressors. The oil sump of each compressor has at least one oil port. Each oil port is disposed at an elevation that is equal to or minimally higher than the level of oil to promote equalization of oil levels in each compressor. There are a plurality of separate conduits which are not directly connected, but connected through the oil sumps of separate compressors. At least one compressor includes an oil sump extension having connections for the separate conduits. Each oil port is connected to the separate conduits or an oil sump extension. Each separate conduit connects a pair of compressors.
F04C 29/02 - LubrificationSéparation du lubrifiant
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 28/02 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour plusieurs pompes connectées en série ou en parallèle
In order to improve a semi-hermetic refrigerant compressor, comprising a reciprocating piston compressor, an electric motor, an overall housing which has a motor housing portion for the electric motor and a compressor housing portion for the reciprocating piston compressor, a suction-side refrigerant path which leads from a suction connection on the overall housing to an inlet chamber of the reciprocating piston compressor, and a pressure-side refrigerant path which leads from an outlet chamber of the reciprocating piston compressor to a pressure connection on the overall housing, such that the refrigerant compressor functions more efficiently, it is proposed that the electric motor is configured as a synchronous motor, in the rotor of which there are arranged permanent magnets for the synchronous operation of the electric motor and a squirrel cage for starting up the electric motor in asynchronous operation.
F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
F04B 7/00 - "Machines" ou pompes à piston caractérisées par un entraînement desmodromique des organes du mécanisme de distribution
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Compressors, in particular refrigerant compressors, and parts thereof; oil separators, and parts thereof; mufflers (parts of machines), namely, mufflers for discharge gas lines in refrigeration plants, and parts thereof; valves for machines, and parts thereof; valves for engines, and parts thereof; clack valves [parts of machines] , and parts thereof; machines for power generation, namely, electric power generators, and parts thereof; expansion machines [steam engines], namely, machines for power generation through expansion of pressurized fluids, and parts thereof; Organic Rankine Cycle electric power generators, and parts thereof; pumps as parts of machines, motors and engines; hydraulic pumps, pneumatic pumps, and parts thereof
(2) Measuring apparatus, namely, temperature sensors, pressure sensors, flow meters, tachometers; sensors and detectors, namely, pressure, temperature, and fluid sensors; measuring, detecting and monitoring instruments, indicators and controllers, namely, electrical control systems for generators, power generators, and electric generators; controllers [regulators], namely, temperature regulators, voltage regulators; frequency inverters for heating, ventilation, air conditioning, and refrigeration machines; electric control valves for electric power generators; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for compressors, namely, electrical control and diagnostic systems for heating, ventilation, air conditioning, and refrigeration machines, communication apparatus, namely, computer hardware for telecommunication with remote cooling, refrigeration, air conditioning and heating equipment, and with electric power generators; computer software for setup, configuration, monitoring, and troubleshooting of heating, ventilation, air conditioning, and refrigeration machines and of electric power generators; downloadable electronic publications in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; downloadable electronic publications recorded on computer media in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; power operated valves, namely, solenoid-operated valves, and parts thereof; valves operated by changes in pressure, namely, pressure relief valves, and parts thereof
(3) Refrigerant condensers, and parts thereof; cooling evaporators, and parts thereof; refrigerant accumulators, and parts thereof; separators for the purification of refrigerants, and parts thereof; heat exchangers, and parts thereof; valves for heat recovery units, and parts thereof; heat recovery units, and parts thereof; waste heat utilization units, and parts thereof; condensers [machines], namely, refrigeration condensers, and parts thereof (1) Advertising the goods and services of others; drafting and publication of publicity texts; market research; public relations services; business management consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation, relating to generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; updating and maintenance of data in computer databases; computerized management of databases [administrative services]; computerized data file management.
(2) Installation, repair, maintenance and servicing of generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, namely, machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle electric power generators and parts and accessories of the aforesaid goods, all in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation
(3) Provision of training and education in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; arranging and conducting of training events, conducting of courses, seminars and workshops in the field of heating, ventilation, air conditioning, and refrigeration, and electrical power generation; arranging and conducting of conferences, congresses and symposiums in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; providing electronic publications, namely, brochures, manuals, and informational sheets, in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation
(4) Technological consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; IT programming services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; information technology [IT] engineering in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; information technology [IT] consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing, certification, and quality control services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering design and consultancy namely, technical design and consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing services, namely, testing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; provision of surveys [technical], namely, technical surveying; technical supervision and inspection of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; services for monitoring of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; monitoring of computer systems by remote access; product development; product design of heating, ventilation, air conditioning, and refrigeration machines; product testing of heating, ventilation, air conditioning, and refrigeration machines; software development, programming and implementation; design, maintenance and updating of computer software
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Electricity generators; electrical power generators; compressors, in particular refrigerant compressors; refrigerant fluid condensers; oil separators; mufflers being parts of machines; valves being parts of machines; valves being parts of engines; power operated valves being parts of engines; valves operated by changes in pressure being parts of engines; clack valves being parts of machines; machines for power generation, namely, AC generators, auxiliary power units for supplying electrical power to heat and power generators, block type thermal power stations for power generation, current generators, electric generators, electric power generators for indoor use, electric power generators for ships, engines and motors for the generation of electricity, gas-operated power generators, mobile electric power generators; expansion machines in the nature of steam engines, not for land vehicles; power generators and systems consisting thereof based on the organic rankine cycle technology; pumps for machines, motors and engines; component parts of the aforesaid goods Sensors and detectors for sensing and detecting temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; measuring instruments for measuring temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; frequency inverters; electric control valves, namely, automatic valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments, namely, computer hardware, recorded software, and downloadable software for monitoring and diagnosing malfunctions in power generators, refrigerant compressors, machines for power generation, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, and organic rankine cycle systems; apparatus for the transmission of communications; downloadable and recorded computer software in the field of waste heat recovery and power generation for controlling, evaluating, and monitoring equipment, for correcting equipment performance issues, for remote maintenance and service of equipment, and for machine-to-machine communication; downloadable electronic publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; electronic publications recorded on computer media, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; downloadable electronic databases in the field of waste heat recovery and power generation; electronic databases recorded on computer media in the field of waste heat recovery and power generation Refrigerant condensers; evaporators for chemical processing; coolant recovery systems comprised of liquid collectors for refrigerants; separators for the purification of refrigerants; heat exchangers other than parts of machines; valves for heat recovery units; heat recovery units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; waste heat utilization units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; component parts of the aforesaid goods Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale distributorships in the field of power generators, refrigerant compressors, refrigerant condensers, liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; promotional and marketing sponsorship services in the nature of promoting and marketing the goods of others; compilation and systemization of information into computer databases; database management, namely, collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; administrative services in the nature of management of computerized databases Installation, repair, maintenance and servicing of power generators, refrigerant compressors, refrigerant condensers, and liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services Conducting of courses, seminars and workshops in the field of waste heat recovery and power generation; arranging and conducting of educational conferences, congresses and symposiums in the field of waste heat recovery and power generation; publishing services, namely, publishing printed publications in the field of waste heat recovery and power generation; providing online non-downloadable publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation Scientific and technological services, namely, scientific research in the field of waste heat recovery and power generation; engineering services; information technology (IT) consultancy services; IT programming services, namely, computer programming; quality control services for others, namely, technical testing and certification; engineering design and consultancy; technical product functionality, product quality, and product safety testing services, namely, testing of waste heat recovery devices and power generation equipment; provision of technical surveys in the field of waste heat recovery and power generation; technical supervision and inspection of waste heat recovery devices and power generation equipment to ensure proper functioning; services for technical testing and monitoring industrial processes, namely, quality control testing services for industrial machinery, monitoring of waste heat recovery and power generation processes for quality assurance purposes, and inspection of waste heat recovery and power generation equipment for quality control, for others; monitoring of computer systems by remote access to ensure proper functioning; product development; new product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software; consultancy and information in relation to the aforesaid services
In order to improve a compressor comprising a compressor housing, a scroll compressor unit which is arranged in the compressor housing and comprises a first stationary compressor body and a second compressor body that can be moved relative to the stationary compressor body, an eccentric drive for the scroll compressor unit, said drive having a drive member which is driven by a drive motor and which revolves about the central axis of a driveshaft on an orbital path, and an orbital path balancing mass which counteracts an unbalance due to the compressor body moving on the orbital path, so that even at high rotational speeds the long-term stability of the drive member guidance in the drive member receptacle can be ensured, it is proposed that the orbital path balancing mass is coupled to the eccentric drive such that the mass moves on the orbital path in a manner corresponding to the movement of the drive member but is uncoupled with respect to the transmission of tilting moments to the drive member.
F04C 2/02 - Machines ou pompes à piston rotatif du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
80.
METHOD FOR SELECTING A FREQUENCY CONVERTER FOR A REFRIGERANT COMPRESSOR UNIT
In order to improve a method for selecting a frequency converter for a refrigerant compressor unit, comprising a refrigerant compressor and an electric drive motor, in such a way that the frequency converter is selected to meet application-specific requirements, a working condition that is suitable for the operation of the refrigerant compressor unit is selected in a field of application of an application diagram of the refrigerant compressor; an operating frequency is selected for this selected working condition; and, from drive data, a working condition operating current value corresponding to the selected working condition and the selected operating frequency is determined for the operation of the refrigerant compressor unit.
H02P 27/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
H02P 29/032 - Prévention d’un endommagement du moteur, p. ex. détermination de limites individuelles de courant pour différentes conditions de fonctionnement
In order to improve safety in a refrigerant compressor system comprising a refrigerant compressor and an electric drive motor for driving the refrigerant compressor and, arranged in a protected manner in an interior of a control housing, an electronic control system comprising electric components or electronic power components for controlling the electric drive motor, according to the invention, during operation of the refrigerant compressor system with combustible refrigerant, the control housing is provided with a refrigerant diversion, which does not impair at least one protection criterion of the control housing, for discharging refrigerant which enters into the interior due to a refrigerant leakage, said refrigerant diversion causing the refrigerant entering into the interior due to the refrigerant leakage to pass out of the interior into the surroundings of the refrigerant compressor system.
F24F 11/36 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques aux fuites de fluides échangeurs de chaleur
F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité
The invention provides, in a cold generator comprising a refrigerant circuit, that the cold generator comprises a heat exchanger unit, in which a heat-emitting heat exchanger and a heat-absorbing heat exchanger are integrated, wherein the heat exchanger unit comprises a flow path layer set built up in a stacked construction; the invention further provides that at least one heat-emitting refrigerant flow path and at least one heat-absorbing second heat transport flow path are provided in order to form the heat-emitting heat exchanger in the flow path layer set, that a second heat transport medium guided in a second heat transport circuit may flow or does flow through the second heat transport flow path in a second heat transport circuit, that at least one heat-absorbing refrigerant flow path and at least one heat-emitting first heat transport flow path are provided to form the heat-absorbing heat exchanger in the flow path layer set, and that a first heat transport medium guided in a first heat transport circuit can flow or does flow through the first heat transport flow path.
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Generators; generating plant; compressors, in particular
refrigerant compressors; condensers (machines); oil
separators; mufflers (parts of machines); valves for
machines; valves for engines; power operated valves; valves
operated by changes in pressure; clack valves (parts of
machines); machines for power generation; expansion machines
(steam engines); power generators and systems consisting
thereof based on the organic rankine cycle technology;
pumps; parts of the aforesaid goods. Measuring apparatus; sensors and detectors; measuring,
detecting and monitoring instruments, indicators and
controllers; controllers (regulators); frequency inverters;
electric control valves; solenoid valves; electronic
diagnostic and motor protection devices, apparatus, modules
and instruments for generators, compressors, machines for
power generation, expansion machines and organic rankine
cycle systems; communication apparatus; computer software;
electronic publications (downloadable); electronic
publications recorded on computer media; electronic
databases. Refrigerant condensers; evaporators; liquid collectors for
refrigerants; separators for the purification of
refrigerants; heat exchangers; valves for heat recovery
units; heat recovery units; waste heat utilization units;
parts of the aforesaid goods. Advertising; drafting and publication of publicity texts;
marketing; market research; public relations services;
business consultancy and advisory services; mediation of
trade business for third parties; retail and wholesale
services relating to generators, compressors, condensers,
liquid collectors for refrigerants, expansion machines,
machines for power generation, organic rankine cycle systems
and parts and accessories of the aforesaid goods;
sponsorship [promotion and marketing services]; compilation
and systemization of information into computer databases;
collection, processing and output of data in computer
databases; updating and maintenance of data in computer
databases; computerized management of databases
(administrative services); computerized data management. Installation, repair, maintenance and servicing of
generators, compressors, condensers, liquid collectors for
refrigerants, expansion machines, machines for power
generation, organic rankine cycle systems and parts and
accessories of the aforesaid goods; consultancy and
information in relation to the aforesaid services, as far as
included in this class. Provision of training and education; arranging and
conducting of training events; conducting of courses,
seminars and workshops; arranging and conducting of
conferences, congresses and symposiums; publishing services;
providing electronic publications. Scientific and technological services; engineering services;
information technology [IT] consultancy services and IT
programming services; technical testing and certification
(quality control); engineering design and consultancy;
technical testing services; provision of surveys
[technical]; technical supervision and inspection (terms too
vague in the opinion of the International Bureau – Rule 13
(2) (b) of the Common Regulations); quality control testing
services for industrial machinery, process monitoring for
quality assurance, inspection of goods for quality control;
monitoring of computer systems by remote access; product
development; product design; product testing; software
development, programming and implementation; design,
maintenance and updating of computer software; consultancy
and information in relation to the aforesaid services, as
far as included in this class.
The invention relates to a screw compressor comprising a compressor housing (12) with a screw rotor chamber (18), two meshing screw rotors (26, 28) which are arranged in the screw rotor chamber and are mounted each on the compressor housing so as to be rotatable about respective screw rotor axes, and at least one control slide (52, 54) which is arranged in a compressor housing slide channel (56), the compression wall surfaces (62, 64) of which adjoin both screw rotors (26, 28), and which can be moved in a slide direction (72) parallel to the screw rotor axes, is rigidly connected to a piston rod (118) that leads to a cylinder assembly (112) for moving the at least one control slide, and is guided relative to the compressor housing by means of a guide insert (172) that movably receives the piston rod (118) in the slide direction (112), wherein the piston rod (112) is guided transversely to the slide direction in the guide insert (172) in an elastically resilient manner by means of a guide element (242, 276, 278, 292).
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 28/12 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des tiroirs
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Generators; Generating plant; Compressors, in particular refrigerant compressors; Condensers (machines); Oil separators; Mufflers (parts of machines); Valves for machines; Valves for engines; Power operated valves; Valves operated by changes in pressure; Clack valves (parts of machines); Machines for power generation; Expansion machines; Organic Rankine Cycle systems; Pumps; Liquid collectors for refrigerants; Parts of the aforesaid goods. Measuring apparatus; Sensors and detectors; Measuring, detecting and monitoring instruments, indicators and controllers; Controllers (regulators); Frequency inverters; Electric control valves; Solenoid valves; Electronic diagnostic and motor protection devices, apparatus, modules and instruments for generators, compressors, machines for power generation, expansion machines and Organic Rankine Cycle systems; Communication apparatus; Computer software; Electronic publications (downloadable); Electronic publications recorded on computer media; Electronic databases. Refrigerant condensers; Evaporators; Separators for purifying liquid and gaseous refrigerants; Heat exchangers; Valves for heat recovery units; Heat recovery units; Waste heat utilization units; Parts of the aforesaid goods. Advertising; Drafting and publication of publicity texts; Marketing; Market research; Public relations services; Business consultancy and advisory services; Mediation of trade business for third parties; Retail and wholesale services relating to generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, Organic Rankine Cycle systems and parts and accessories of the aforesaid goods; Promotional sponsorship; Compilation and systemization of information into computer databases; Collection, processing and output of data in computer databases; Updating and maintenance of data in computer databases; Computerized management of databases (administrative services); Computerized data management. Installation, repair, maintenance and servicing of generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, Organic Rankine Cycle systems and parts and accessories of the aforesaid goods; Consultancy and information in relation to the aforesaid services, as far as included in this class. Provision of training and education; Arranging and conducting of training events, conducting of courses, seminars and workshops; Arranging and conducting of conferences, congresses and symposiums; Publishing services; Providing electronic publications. Science and technology services; Engineering services; IT services; Technical testing and certification (quality control); Engineering design and consultancy; Technical testing services; Provision of surveys [technical]; Technical supervision and inspection; Services for monitoring industrial processes; Monitoring of computer systems by remote access; Product development; Product design; Product testing; Software development, programming and implementation; Design, maintenance and up-dating of computer software; Consultancy and information in relation to the aforesaid services, as far as included in this class.
86.
Method for selecting a frequency converter for a refrigerant compressor unit
In order to improve a method for selecting a frequency converter for a refrigerant compressor unit that includes a refrigerant compressor and an electric drive motor such that the frequency converter is selected in a manner for optimized use, it is proposed that a working state suitable for operation of the refrigerant compressor unit should be selected within an application field of an application graph of the refrigerant compressor, that an operating frequency for this selected working state should be selected, and that a working state operating current value that corresponds to the selected working state and the selected operating frequency should be determined from drive data, for operation of the refrigerant compressor unit.
H02P 27/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
H02P 29/032 - Prévention d’un endommagement du moteur, p. ex. détermination de limites individuelles de courant pour différentes conditions de fonctionnement
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
H02P 29/02 - Protection contre les surcharges sans interruption automatique de l’alimentation
Screw compressor including control sliders that cooperate to form an inflow chamber for inflow from a compression chamber and with one slider provided with an outflow outlet
A screw compressor includes two screw rotors and two control sliders that are arranged one behind the other in a slider channel. The control sliders have a combined position with mutually facing end surfaces sealing tightly with each other, and being movable together and have a separated position, with positionable spacing from one another, forming an intermediate space. In a transfer position between the combined and separated positions, the control sliders form an inflow chamber into which the medium to be compressed flows out of one of the compression chambers by passing between the mutually facing end surfaces of the control sliders. One of the control sliders is provided with at least one outflow outlet that is adjacent to the inflow chamber and through which the medium from the inflow chamber enters an outflow opening in the slider channel that overlaps with the outflow outlet in this transfer position.
F04C 28/18 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la variation du volume de la chambre de travail
F04C 28/12 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des tiroirs
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
A refrigerant compressor unit, including a compressor housing and at least one compressor element that is arranged in the compressor housing, is movable by bearing and drive parts, and operates in at least one compressor chamber, at least one lubricant supply point arranged in the compressor housing for at least one of the bearing and drive parts and/or compressor element, and a lubricant supply line to the at least one lubricant supply point, wherein the lubricant supply line has a lubricant storage chamber through which lubricant flows and in which a lubricant presence sensor is arranged for detecting the presence of lubricant in the lubricant storage chamber.
F04C 18/08 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 28/06 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour arrêter, pour démarrer, pour le ralenti ou pour un fonctionnement à charge nulle
90.
Compressor unit and method for operating a compressor unit
A compressor unit including a screw compressor having a compressor housing that has a screw rotor chamber arranged in the compressor housing, two screw rotors that are arranged in the screw rotor chamber and are mounted on the compressor housing to be rotatable about a respective screw rotor axis, and at least one control slider, which is arranged in a slider channel of the compressor housing, is adjacent to both screw rotors and is movable in a direction of displacement parallel to the screw rotor axes and takes a form such that it affects the final volume and/or the initial volume, wherein there is provided on the screw compressor a compressor operational control unit that takes a form such that it performs a compressor operating function that assists at least one operation of the compressor unit.
F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
F04C 28/12 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des tiroirs
F04C 29/02 - LubrificationSéparation du lubrifiant
F04C 28/06 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour arrêter, pour démarrer, pour le ralenti ou pour un fonctionnement à charge nulle
91.
Initialising system for a refrigerant compressor unit and method for initialising a refrigerant compressor unit
In order to an initialising system for a refrigerant compressor unit, including a refrigerant compressor, an electrical drive motor for the refrigerant compressor and a compressor controller that determines the voltage and speed of the drive motor on the basis of sets of configuration parameters loaded into this compressor controller and controls the drive motor accordingly, wherein the initialising system has a compressor data memory, in which compressor data relating to respectively possible refrigerant compressors are stored, and a motor data memory, in which motor data relating to possible drive motors are stored, wherein the initialising system has a processor for performing the initialisation, a display unit and an input unit, wherein during initialisation the display unit and the input unit serve to determine the refrigerant compressor and the drive motor, and wherein the processor uses the compressor data of the determined refrigerant compressor and uses the motor data of the determined drive motor to generate compressor configuration parameters and motor configuration parameters and loads them into the compressor controller for the purpose of operating the drive motor.
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
A facility has a storage unit comprising a housing enclosing a storage volume for receiving goods and/or equipment. It comprises an operating system provided with a tempering unit associated with the storage volume for maintaining a defined or set temperature in the storage volume. The operating system is provided with a refrigerant circuit comprising an internal heat exchanger, arranged in the tempering unit, an external heat exchanger as well as a compressor unit for compressing refrigerant. The operating system is provided with an engine for driving said compressor unit as an independent power source and an electric generator unit mechanically coupled to said engine. The compressor unit and/or the generator unit are driven by the engine independent power source, with the operating system connected to a local energy supply system of said facility to provide a local electric mains power supply system connected to the electric generator unit.
In order to optimise a compressor, including a compressor housing, a scroll compressor unit that is arranged in the compressor housing and has a first compressor body and a second compressor body that is movable in relation to the first compressor body, an axial guide that supports the movable compressor body to prevent movements in the direction parallel to the centre axis of the stationary compressor body and, in the event of movements, guides it in the direction transverse to the centre axis, parallel to a plane perpendicular to the centre axis, an eccentric drive for the scroll compressor unit, wherein the eccentric drive has an entrainer that is driven by the drive motor, that revolves on a path about the centre axis and that, for its part, cooperates rotatably with an entrainer receptacle in the second compressor body, and a coupling that prevents the second compressor body from rotating freely, it is proposed that the axial guide should have a carrier element, which serves as a base for supporting a compressor body base, which carries the scroll vane, of the second compressor body against an axial support face, that the axial support face should be arranged radially outward of the entrainer, and that the coupling that prevents free rotation should have at least two coupling element sets that, for their part, include at least two coupling elements, and that the coupling element sets should be arranged radially outward of the axial support face.
F01C 1/02 - "Machines" ou machines motrices à piston rotatif du type à engrènement, c.-à-d. avec mouvement de translation circulaire des organes coopérants, tous les organes ayant le même nombre de dents ou de parties équivalentes de prise
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F01C 17/06 - Dispositions pour l'entraînement des organes coopérants, p. ex. pour piston rotatif et son carter utilisant des manivelles, des joints universels, ou des éléments similaires
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Compressors, in particular refrigerant compressors, and parts thereof; condensers [machines], namely, refrigeration condensers, and parts thereof; oil separators, and parts thereof; mufflers (parts of machines), namely, mufflers for discharge gas lines in refrigeration plants, and parts thereof; valves for machines, and parts thereof; valves for engines, and parts thereof; clack valves being parts of machines, and parts thereof; machines for power generation, namely, electric power generators, and parts thereof; expansion machines [steam engines], namely, machines for power generation through expansion of pressurized fluids, and parts thereof; Organic Rankine Cycle electric power generators, and parts thereof; pumps as parts of machines, motors and engines; hydraulic pumps, pneumatic pumps, and parts thereof
(2) Measuring apparatus, namely, temperature sensors, pressure sensors, flow meters, tachometers; sensors and detectors, namely, pressure, temperature, and fluid sensors; measuring, detecting and monitoring instruments, indicators and controllers, namely, electrical control systems for electric generators; controllers [regulators], namely, temperature regulators, voltage regulators; electric control valves for regulating the flow of liquids and gases; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for compressors, namely, electrical control and diagnostic systems for heating, ventilation, air conditioning, and refrigeration machines; communication apparatus, namely, computer hardware for telecommunication with remote cooling, refrigeration, air conditioning and heating equipment, and with electric power generators; computer software for setup, configuration, monitoring, and troubleshooting of heating, ventilation, air conditioning, and refrigeration machines and of electric power generators; downloadable electronic publications in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; downloadable electronic publications recorded on computer media in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation
(3) Frequency inverters
(4) Refrigerant condensers, and parts thereof; cooling evaporators, and parts thereof; separators for the purification of refrigerants, and parts thereof; heat exchangers, and parts thereof; valves for heat recovery units, and parts thereof; heat recovery units, and parts thereof; waste heat utilization units, and parts thereof (1) Advertising the goods and services of others; drafting and publication of publicity texts; market research; public relations services; business management consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; updating and maintenance of data in computer databases; computerized management of databases [administrative services]; computerized data file management
(2) Installation, repair, maintenance and servicing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators, expansion machines, namely, machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle electric power generators, and of parts and accessories of the aforesaid goods
(3) Provision of training and education in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; arranging and conducting of training events, conducting of courses, seminars and workshops in the field of heating, ventilation, air conditioning, and refrigeration, and electrical power generation; arranging and conducting of conferences, congresses and symposiums in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; providing electronic publications, namely, brochures, manuals, and informational sheets, in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation
(4) Technological consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; information technology [IT] consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing, certification, and quality control services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering design and consultancy namely, technical design and consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing services, namely, testing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; provision of surveys [technical], namely, technical surveying; technical supervision and inspection of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; services for monitoring of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; monitoring of computer systems by remote access; product development; product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software
Method for controlling a compressor system, arranged in a heat pumping circuit, said compressor system being designed to be operated at at least two different compressor capacity stages, said compressor capacity stages being adjusted by a capacity adjustment system enabling switching from one compressor capacity stage to another compressor capacity stage, said capacity adjustment system being controlled by a capacity selection signal defining the compressor capacity stage to be selected, said method comprising determining a capacity set value, determining a decision quantity on the basis of said capacity set value, determining a calculated capacity average value on the basis of capacity selection signals generated before, comparing said calculated capacity average value with said decision quantity and changing said compressor capacity stage to the next higher stage if the calculated capacity average value is below the decision quantity or changing said compressor capacity stage to the next lower stage if the calculated capacity average value is above the decision quantity, or not changing said compressor capacity stage if the calculated capacity average value meets said decision quantity.
A heat exchanger comprises a shell having an elongated shape and a cylindrical geometry. A first fluid, fed through one or more first inlet pipes, flows inside the shell and a second fluid, fed through at least one second inlet pipe, flows inside the shell in order to perform heat exchange with the first fluid. The heat exchanger also comprises a fluid distributor assembly placed at the first inlet pipes. The fluid distributor assembly is provided with a first perforated plate, in turn provided with first through holes, and with at least one second perforated plate, in turn provided with second through holes.The second perforated plate is disposed parallel and downstream of the first perforated plate with respect to the flow direction of the first fluid flowing into the first through holes and the second through holes.Between the first perforated plate and the second perforated plate a hermetic seal device is disposed. The first perforated plate and the second perforated plate are spaced from each other, in such a way that the first perforated plate and the second perforated plate, together with the hermetic seal device, surround an equalization chamber of predefined depth, measured along the flow direction of the first fluid flowing into the first through holes and the second through holes.Each equalization chamber is closed at the peripheral edges of the first perforated plate and of the second perforated plate.
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Electricity generators; electrical power generators; compressors, in particular refrigerant compressors; refrigerant fluid condensers; oil separators; mufflers being parts of machines; valves being parts of machines; valves being parts of engines; power operated valves being parts of engines; valves operated by changes in pressure being parts of engines; clack valves being parts of machines; machines for power generation, namely, AC generators, auxiliary power units for supplying electrical power to heat and power generators, block type thermal power stations for power generation, current generators, electric generators, electric power generators for indoor use, electric power generators for ships, engines and motors for the generation of electricity, gas-operated power generators, mobile electric power generators; expansion machines in the nature of steam engines, not for land vehicles; power generators and systems consisting thereof based on the organic rankine cycle technology; pumps for machines, motors and engines; component parts of the aforesaid goods Sensors and detectors for sensing and detecting temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; measuring instruments for measuring temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; frequency inverters; electric control valves, namely, automatic valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments, namely, computer hardware, recorded software, and downloadable software for monitoring and diagnosing malfunctions in power generators, refrigerant compressors, machines for power generation, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, and organic rankine cycle systems; apparatus for the transmission of communications; downloadable and recorded computer software in the field of waste heat recovery and power generation for controlling, evaluating, and monitoring equipment, for correcting equipment performance issues, for remote maintenance and service of equipment, and for machine-to-machine communication; downloadable electronic publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; electronic publications recorded on computer media, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; downloadable electronic databases in the field of waste heat recovery and power generation; electronic databases recorded on computer media in the field of waste heat recovery and power generation Refrigerant condensers; evaporators for chemical processing; coolant recovery systems comprised of liquid collectors for refrigerants; separators for the purification of refrigerants; heat exchangers other than parts of machines; valves for heat recovery units; heat recovery units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; waste heat utilization units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; component parts of the aforesaid goods Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale distributorships in the field of power generators, refrigerant compressors, refrigerant condensers, liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; promotional and marketing sponsorship services in the nature of promoting and marketing the goods of others; compilation and systemization of information into computer databases; database management, namely, collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; administrative services in the nature of management of computerized databases Installation, repair, maintenance and servicing of power generators, refrigerant compressors, refrigerant condensers, and liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services Conducting of courses, seminars and workshops in the field of waste heat recovery and power generation; arranging and conducting of educational conferences, congresses and symposiums in the field of waste heat recovery and power generation; publishing services, namely, publishing printed publications in the field of waste heat recovery and power generation; providing online non-downloadable publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation Scientific and technological services, namely, scientific research in the field of waste heat recovery and power generation; engineering services; information technology (IT) consultancy services; IT programming services, namely, computer programming; quality control services for others, namely, technical testing and certification; engineering design and consultancy; technical product functionality, product quality, and product safety testing services, namely, testing of waste heat recovery devices and power generation equipment; provision of technical surveys in the field of waste heat recovery and power generation; technical supervision and inspection of waste heat recovery devices and power generation equipment to ensure proper functioning; services for technical testing and monitoring industrial processes, namely, quality control testing services for industrial machinery, monitoring of waste heat recovery and power generation processes for quality assurance purposes, and inspection of waste heat recovery and power generation equipment for quality control, for others; monitoring of computer systems by remote access to ensure proper functioning; product development; new product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software; consultancy and information in relation to the aforesaid services
Refrigerant compressor installation comprising at least three compressors which are arranged in parallel between an intake conduit and a pressure conduit and which each comprise a lubricant sump unit, wherein the compressors, when in operation, work in such a way that the respective pressures in the respective lubricant sump units of the respective compressors form a pressure cascade according to which the compressors have a successively slightly decreasing pressure in the respective lubricant sump unit in a defined cascade sequence, and wherein the lubricant sump units are connected to each other in a manner corresponding to the cascade sequence by way of a lubricant conduit system for lubricant transport, and wherein each lubricant sump unit comprises a port to which is connected an insert element which on the one hand establishes communication with the lubricant conduit system and on the other hand is configured such that it predetermines, for the respective lubricant sump unit, a lubricant level from which lubricant is transported to the lubricant sump unit that follows next in the cascade sequence.
F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée
F04C 28/02 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour plusieurs pompes connectées en série ou en parallèle
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Compressors, in particular refrigerant compressors; valves
[mechanical] for regulating fluid flow; valves (clack -)
[parts of machines]; parts for the aforesaid goods;
condensing installations consisting of refrigerant
compressors, condensers for refrigerants and liquid
collectors. Electronic control mechanisms (regulators) for compressors,
in particular refrigerant compressors; valves (electronic
controls for automatically operating -); electric control
valves; solenoid valves [electromagnetic switches]. Refrigerating and freezing equipment; chilling machines;
refrigerating installations; refrigerating machines;
transport refrigeration units; multi-compressor
refrigeration installations comprising a number of
compressors; heat pumps; valves for cooling machines and
refrigerating machines; parts for the aforesaid goods.
